#include <iostream>
#include<algorithm>
using namespace std;

int main()
{
    int a[10005],i,j,n,m;
    cin>>n;
    for(i=0;i<n;i++){
        cin>>a[i];
    }
    cin>>m;
    int flag=0;
    for(i=0;i<n;i++){
        if(m==a[i])
        {
            flag=1;
            printf("The element position is %d.",i);
            break;
        }
    }
    if(flag==0)
        printf("The element is not exist.");
    return 0;
}
